Locate the position of the fleet in the grid. The shapes of the ships are shown to the right of the grid. The numbers in the grid indicate the number of cells occupied by ships in adjazent cells, including diagonally. Ships may touch the edge of the board, but can't touch each other, even not diagonally. Ships do not overlap the numbered squares.

In every row and column is exactly one circle, one square and one triangle. Locate the position of these symbols. The numbers in the grid indicate the number of cells occupied by symbols in adjazent cells, including diagonally. Symbols are not on the numbered squares.

After the shift on 23 December the miners of the Erzgebirge celebrated in their mines the Mettenschicht. Still today many christmas hootenannys take place underground in former mines. For me they are among the most beautiful. Our miner is facing the following puzzle:

The letters A, B, C and D represent four minerals that are hidden in a gallery. Write the letters A, B, C and D) in some fields of the grid. Each letter must occur in each row and each column exactly once. The remaining fields are blank. Letters outside the diagram indicate which letter you see if you look into the grid from that point. Numbers in the grid indicate how many letters are on the 8 neighboring cells. Cells marked with a number are empty.

Locate the position of the 3 tanks of 7 cells in the grid. The tanks do not touch each other, even not diagonally. Numbers indicate the total number of tank cells in their row and column. Tanks can not cover cells with numbers. To cells are marked to be empty.

Locate the position of the 10-ship fleet in the grid. The ships do not touch each other, even not diagonally. The numbered squares are lighthouses, and indicate the total number of ship parts that are in the same row or column as the lighthouse. Ships can not touch the lighthouses, not even diagonally.

Locate the position of mines in the grid. The numbers in the grid indicate the number of cells occupied by mines in adjazent cells, including diagonally or on the numbered square. In the marked regions either all or none cell has a mine.

Locate the position of the given fleet in the grid. The shapes of the ships are shown to the right of the grid. There is one 4x1 battleship, two 3x1 cruisers, three 2x1 destroyers and 4 1x1 submarines. The numbers in the grid indicate the number of cells occupied by ships in adjazent cells (only horizontally or vertically adjazent cells). Ships may touch the edge of the board, but can touch each other only diagonally. Ships do not overlap the numbered squares.